如何解决此错误:预期的单例候选者(1,2,3,4)

Question

def _get_index_content(self, cr, uid, ids, fields, args, context=None):
    res = dict.fromkeys(ids, '')
    Attachment = self.pool.get('ir.attachment')
    applicant_ids = self.pool.get('hr.applicant').search(cr, uid, [('email_from', '=', self.browse(cr, uid, ids, context=context).email_candidat)], context=context)
    attachment_ids = Attachment.search(cr, uid, ['|', '&', ('res_model', '=', 'candidat.base'), ('res_id', 'in', ids), '&', ('res_model', '=', 'hr.applicant'), ('res_id', 'in', applicant_ids)], context=context)
    for attachment in Attachment.browse(cr, uid, attachment_ids, context=context):
        res[attachment.res_id] += attachment.index_content or ''
    return res                  

def _content_search(self, cr, user, obj, name, args, context=None):
    record_ids = set()
    Attachment = self.pool.get('ir.attachment')
    ids = obj.search(cr, uid, [])
    applicant_ids = self.pool.get('hr.applicant').search(cr, user, [('email_from', '=', self.browse(cr, user, ids, context=context).email_candidat)], context=context)
    args = ['&'] + args + ['|', '&', ('res_model', '=', 'candidat.base'), ('res_id', 'in', ids), '&', ('res_model', '=', 'hr.applicant'), ('res_id', 'in', applicant_ids)]
    att_ids = Attachment.search(cr, user, args, context=context)
    record_ids = set(att.res_id for att in Attachment.browse(cr, user, att_ids, context=context))
    return [('id', 'in', list(record_ids))]

'index_content'： fields.function（_get_index_content，fnct_search=_content_search， string='Index Content'， type="text"），

我得到预期的单例candidat.base（1,2,3,4）作为一个错误。

Answer 1

applicant_ids = self.pool.get('hr.applicant').search(cr, user, [('email_from', '=', self.browse(cr, user, ids, context=context).email_candidat)], context=context)

如果 ID 是包含 2 个或更多 ID 的列表，则不起作用。浏览将获得包含 2 个条目的记录集，您无法在其上调用字段值，例如 email_candidat 。

尝试搜索所有电子邮件地址，例如：

applicant_ids = self.pool.get('hr.applicant').search(cr, user, [('email_from', 'in', [x.email_candidat for x in self.browse(cr, user, ids, context=context)])], context=context)

也许再用几行来使代码更具可读性。